Nav: Fixed vertical scoring offset when wrapping on Y in a decorated window.

docs/CHANGELOG.txt

@@ -74,6 +74,7 @@ Other Changes:
   the PressedOnClick/PressedOnDoubleClick/PressedOnRelease button policy.
 - Nav: Fixed an issue with losing focus on docked windows when pressing Alt while keyboard navigation
   is disabled. (#4547, #4439) [@PathogenDavid]
+- Nav: Fixed vertical scoring offset when wrapping on Y in a decorated window.
 - Nav: Improve scrolling behavior when navigating to an item larger than view.
 - TreePush(): removed unnecessary/inconsistent legacy behavior where passing a NULL value to
   the TreePush(const char*) and TreePush(const void*) functions would use an hardcoded replacement.

imgui.cpp

@@ -9814,10 +9814,11 @@ static void ImGui::NavEndFrame()
             }
             do_forward = true;
         }
+        const float decoration_up_height = window->TitleBarHeight() + window->MenuBarHeight();
         if (g.NavMoveDir == ImGuiDir_Up && (move_flags & (ImGuiNavMoveFlags_WrapY | ImGuiNavMoveFlags_LoopY)))
         {
             bb_rel.Min.y = bb_rel.Max.y =
-                ImMax(window->SizeFull.y, window->ContentSize.y + window->WindowPadding.y * 2.0f) - window->Scroll.y;
+                ImMax(window->SizeFull.y, window->ContentSize.y + window->WindowPadding.y * 2.0f) - window->Scroll.y + decoration_up_height;
             if (move_flags & ImGuiNavMoveFlags_WrapY)
             {
                 bb_rel.TranslateX(-bb_rel.GetWidth());
@@ -9827,7 +9828,7 @@ static void ImGui::NavEndFrame()
         }
         if (g.NavMoveDir == ImGuiDir_Down && (move_flags & (ImGuiNavMoveFlags_WrapY | ImGuiNavMoveFlags_LoopY)))
         {
-            bb_rel.Min.y = bb_rel.Max.y = -window->Scroll.y;
+            bb_rel.Min.y = bb_rel.Max.y = -window->Scroll.y + decoration_up_height;
             if (move_flags & ImGuiNavMoveFlags_WrapY)
             {
                 bb_rel.TranslateX(+bb_rel.GetWidth());